Nigerian billionaire Aliko Dangote

Nigerian billionaire Aliko Dangote

Pius Utomi Ekpei / AFP/Getty Images

Nigerian billionaire Aliko Dangote in 2007. Africa's richest man, he built his fortune by snapping up privatized state enterprises, then expanding and building his own cement factories and other manufacturing plants.

Nigerian billionaire Aliko Dangote in 2007. Africa's richest man, he built his fortune by snapping up privatized state enterprises, then expanding and building his own cement factories and other manufacturing plants. (Pius Utomi Ekpei / AFP/Getty Images)

Nigerian billionaire Aliko Dangote in 2007. Africa's richest man, he built his fortune by snapping up privatized state enterprises, then expanding and building his own cement factories and other manufacturing plants.Pius Utomi Ekpei / AFP/Getty Images